Pass StringRef by value.

[oota-llvm.git] / include / llvm / PassManagers.h

diff --git a/include/llvm/PassManagers.h b/include/llvm/PassManagers.h
index e0c1bf2de511c5577adee19a573a6ee79a33595e..dffc24a41ca734deb8e4b8e9fb77c9cd6d3c199b 100644 (file)
--- a/include/llvm/PassManagers.h
+++ b/include/llvm/PassManagers.h
@@ -1,4 +1,4 @@
-//===- llvm/PassManager.h - Pass Inftrastructre classes  --------*- C++ -*-===//
+//===- llvm/PassManagers.h - Pass Infrastructure classes  -------*- C++ -*-===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -11,8 +11,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef PASSMANAGERS_H
-#define PASSMANAGERS_H
+#ifndef LLVM_PASSMANAGERS_H
+#define LLVM_PASSMANAGERS_H
 
 #include "llvm/PassManager.h"
 #include "llvm/ADT/SmallVector.h"
@@ -88,7 +88,14 @@
 // MPPassManagers.
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Support/PrettyStackTrace.h"
+
 namespace llvm {
+  class Module;
+  class Pass;
+  class StringRef;
+  class Value;
+  class Timer;
 
 /// FunctionPassManager and PassManager, two top level managers, serve 
 /// as the public interface of pass manager infrastructure.
@@ -109,6 +116,25 @@ enum PassDebuggingString {
   ON_CG_MSG // "' on Call Graph ...\n'"
 };  
 
+/// PassManagerPrettyStackEntry - This is used to print informative information
+/// about what pass is running when/if a stack trace is generated.
+class PassManagerPrettyStackEntry : public PrettyStackTraceEntry {
+  Pass *P;
+  Value *V;
+  Module *M;
+public:
+  explicit PassManagerPrettyStackEntry(Pass *p)
+    : P(p), V(0), M(0) {}  // When P is releaseMemory'd.
+  PassManagerPrettyStackEntry(Pass *p, Value &v)
+    : P(p), V(&v), M(0) {} // When P is run on V
+  PassManagerPrettyStackEntry(Pass *p, Module &m)
+    : P(p), V(0), M(&m) {} // When P is run on M
+  
+  /// print - Emit information about this stack frame to OS.
+  virtual void print(raw_ostream &OS) const;
+};
+  
+  
 //===----------------------------------------------------------------------===//
 // PMStack
 //
@@ -254,14 +280,16 @@ public:
   /// verifyPreservedAnalysis -- Verify analysis presreved by pass P.
   void verifyPreservedAnalysis(Pass *P);
 
-  /// verifyDomInfo -- Verify dominator information if it is available.
-  void verifyDomInfo(Pass &P, Function &F);
-
   /// Remove Analysis that is not preserved by the pass
   void removeNotPreservedAnalysis(Pass *P);
   
-  /// Remove dead passes
-  void removeDeadPasses(Pass *P, const char *Msg, enum PassDebuggingString);
+  /// Remove dead passes used by P.
+  void removeDeadPasses(Pass *P, StringRef Msg, 
+                        enum PassDebuggingString);
+
+  /// Remove P.
+  void freePass(Pass *P, StringRef Msg, 
+                enum PassDebuggingString);
 
   /// Add pass P into the PassVector. Update 
   /// AvailableAnalysis appropriately if ProcessAnalysis is true.
@@ -316,7 +344,7 @@ public:
   void dumpLastUses(Pass *P, unsigned Offset) const;
   void dumpPassArguments() const;
   void dumpPassInfo(Pass *P, enum PassDebuggingString S1,
-                    enum PassDebuggingString S2, const char *Msg);
+                    enum PassDebuggingString S2, StringRef Msg);
   void dumpRequiredSet(const Pass *P) const;
   void dumpPreservedSet(const Pass *P) const;
 
@@ -354,9 +382,14 @@ protected:
   // then PMT_Last active pass mangers.
   std::map<AnalysisID, Pass *> *InheritedAnalysis[PMT_Last];
 
+  
+  /// isPassDebuggingExecutionsOrMore - Return true if -debug-pass=Executions
+  /// or higher is specified.
+  bool isPassDebuggingExecutionsOrMore() const;
+  
 private:
-  void dumpAnalysisUsage(const char *Msg, const Pass *P,
-                           const AnalysisUsage::VectorType &Set) const;
+  void dumpAnalysisUsage(StringRef Msg, const Pass *P,
+                         const AnalysisUsage::VectorType &Set) const;
 
   // Set of available Analysis. This information is used while scheduling 
   // pass. If a pass requires an analysis which is not not available then 
@@ -384,12 +417,15 @@ class FPPassManager : public ModulePass, public PMDataManager {
 public:
   static char ID;
   explicit FPPassManager(int Depth) 
-  : ModulePass(intptr_t(&ID)), PMDataManager(Depth) { }
+  : ModulePass(&ID), PMDataManager(Depth) { }
   
   /// run - Execute all of the passes scheduled for execution.  Keep track of
   /// whether any of the passes modifies the module, and if so, return true.
   bool runOnFunction(Function &F);
   bool runOnModule(Module &M);
+  
+  /// cleanup - After running all passes, clean up pass manager cache.
+  void cleanup();
 
   /// doInitialization - Run all of the initializers for the function passes.
   ///
@@ -422,10 +458,9 @@ public:
   }
 };
 
-}
+extern Timer *StartPassTimer(Pass *);
+extern void StopPassTimer(Pass *, Timer *);
 
-extern void StartPassTimer(llvm::Pass *);
-extern void StopPassTimer(llvm::Pass *);
+}
 
 #endif
-